Cigar banding machine



June l1, 1940. E. H. JAHNE ET Al.

CIGAR' BANDING MACHINE Filed Nov. 27, 1937 2 Sheets-Sheet l June 11, 1940. E, H, JAHNE ET AL 2,204,219

CIGAR BANDING MACHINE Filed NOV. 27, 1937 2 Sheets-Sheet 2 Patented June 11, 1940 CIGAR BAND'ING MACHINE` Ernst Hermann Jhne and Rudolf Erich Schlechahn, Dresden, Germany, assignors, by mesne assignments, to J. C. Muller N. V., Rotterdam, Netherlands Application November 27, 1937, Serial No. 176,794 In GermanyDecember l, 1936 6 Claims. (Cl. 21S- 9) This invention relates to cigar banding machines, and has for its object to provide such a machine by means of which cigars may be banded in an eiiicient manner and the ends of the bands applied to the cigar in an equalized manner without bending over the edges of the ends. Furthermore, the object is to seal the bands by pressure acting upon the adhesive of the bands. Lastly, the action of the machine is automatic, that is, Without the hand of man entering into the manipulation of any of the actions, save only the initial supplying of the cigars and bands.

The invention comprises mechanism constructed to apply a band to a cigar and then o move, first one end of the band against the circumferential surface ofthe cigar, and thereafter the other endover the iirst end and over the overlap of the ends, applying pressure to both ends so that the ends by the intervening adhesive hold tightly together. In the carrying out of a preferred form of the invention, an air pressure jet is made use of, the `conduit member forming said jet acting also as a pressure member against the overlapping ends of the bands.

The invention consists of a cigar banding machine in which the band placed upon the cigar is applied around the cigar by means of a pair of folding fingers, and a compressed air nozzle directing a jet of air against one of the ends of the bands, turns or bends it against the cigar before the other end is pressed against the cigar by its folding linger.

The invention consists further in providing means for moving the air nozzle against both overlapping ends of the bands to press them together and against the cigar, so as to cause the adhesive which has been applied to either the outer surface of one band end or to the inner surface of the other band end, to make its final adhesion.

Finally, the invention consists of the provision of a spring supported belt over the ends of the folding fingers, which belt acts against the band to be applied to the cigar by embracing it, and by a part of the belt being moved down and around one side of the cigar to cause one end of the band to circumferentially envelop the cigar body; and thereafter by another part of the belt being moved down and around the other side of inventions will finally be set forth in the claims.

In the accompanying drawings,

Figure 1 is a front View of the improved band applying mechanism, partly in section taken on line I-I of Figure 2;

Figure 2 is a vertical cross-section along the o line 2 2 of Figure l part of the operating mechanism being omitted;

Figure 3 is a partial view of Figure 1, the parts shown being in enlarged size; and

Figures 4 to 8 show end views of the method of operation employed with one part of this invention.

Similar characters of reference indicate corresponding parts throughout the various views. 15'

Referring to the drawings, and more particularly to Figures l to 3, a standard or frame A which is shown as broken away has a table portion I with longitudinal slots 59a through which a carrier or like cigar transporting means I, in the form of a trough, passes, said means I supporting and moving the cigars from their supply to the place where they are to be banded.

In Figure 1 one cigar Z is shown as held in position ready to be moved towardsthe right, while the other cigar, at the right, is shown as in position to be banded. Above the table or platform IS an extension 20 and 20a supports a shaft 56, which in turn pivotally supports elbow levers 5 and 6 moving in the direction of the double head- 30.

ed arrows 5a and 6a, the free ends of the levers 5 and 6 pivotally supporting levers 2 andy 3, to the upper ends of which the elbow or bell crank levers 5 and 6 are pivotally connected. The levers 5 and 6 are moved by the mechanism shown, and control movements as indicated with opposed arrows 5a and 6a. The levers 2 and 3 are provided with rollers I4 and I 4a which coact with cam plates I5 and I6. These cam plates are pivoted to axes I'I and I8 supported on the crossplate 20a of the extension 20, and are actuated in time with certain operations hereinafter to be described. The cam plates move the levers 2 and 3 outwardly from each other, as also downwardly, according to timed operations. Such actuating mechanism by itself forms no part of this invention.

The lower ends of the levers 2 and 3 are provided with finger-like extensions 'I and 8, each carrying at their tips a small roller 9 and 9a. 50 Another set of rollers, l!) and Illa, is supported at the elbows of these levers 2 and 3, these rollers I0 and Illa being guide rollers for a belt II Which has both of its ends Ila and IIb secured to springs I2 and I2a, the other ends of which. 55

- in Figure 6.

are secured to hooks or pins I3 and 13an on the levers 2 and 3. As the rollers 9 and 9a.* move away from each other by the outward movement of the levers 2 and 3, the rollers I0 and Illa pass over the belt II and in consequence a larger part of the belt is disposed between the rollers 9 and 9a, than as shown in Figure 1. When the belt II disposed between the rollers 9 and Ba is placed over a band which has already been placed over a cigar, as shown in Figure 3, first one finger 1 moves with its portion of the belt one'protruding end 3I of the band R circumferen'tially around the cigar, and thereafter the other finger 8 moves with its portion of the belt II the other end 32 of the cigar band R around the cigar and over the end 3 I, whereby the adhesive which has been applied to the outer surface of the end 3l or to the inner surface of the end 32, holds the ends 3| and 32 in overlapping relationship together. After the band has been thus secured together, the banded cigar is moved away by its trough-like transport after the levers 2 and 3 have been raised, and brought to the position shown in Figure 1.

While the device described has `been found generally satisfactory, it has been found that sometimes the edge of one end of the band crimps or bends over backwards upon the main body of the band, and it has been found that the adhesive does not hold sufficiently. In Figures 4 to 8 are shown, diagrammatically, the cigar and band to be applied, and the two fingers 1 and 8 with rollers 9 and 9a, the belt being omitted for the sake of clarity. The band R is placed upon the cigar Z, as in Figure 4; then the finger 1 moves down and around the cigar, moving the end 3I of the band around with it, as shown in Figure 5. While so holding it, the other finger 8 comes down and brings the end 32 downwards, as shown As there is some movement of finger 1 to permit the finger 8 to encircle the cigar, the end 3I becomes free of the cigar, as shown in Figure '1, and in some cases is cambered, or buckles or bends upon itself, and forms a poor binding, as indicated in Figure 8. Also, in some cases, the rather short time of pressure exerted upon the overlapping ends prevents the adhesive from satisfactorily holding the parts of the band together.

Thus, in certain cases there is no proper connection between the superimposed ends and there is a failure of the adhesive. Sometimes, and quite frequently, an air space L has been produced, which causes the band to lie loosely on the cigar and accordingly easily shift its position, and may under certain circumstances be lost entirely, with concomitant damage to the wrapper.

To overcome these disadvantageous features, there is provided a compressed air nozzle which is installed in such a way with respect to the folding fingers that the stream of compressed air seizes one end of the cut-to-shape band R and turns it before the other end is pressed against the cigar by its folding finger. Also, the means for discharging the air jet may be so formed and so actuated as to act as a pressure member to press the two overlapping ends of the band together to enable the adhesive to suitably contact. To carry out this important feature of the invention, the platform I9 has arranged below it suitable mechanism. The finger 1 with its roller 9 need not go so far as shown in Figure 6, as the jet of air will carry out this function, and the finger 1 need not travel so far, thus saving in the operation of parts, and in consequence enabling a saving of time.

Below the platform I9 (see Figures 1 and 2), there is arranged a compressed air nozzle 2I which is supported by a lever 22. This nozzle 2l is connected with a valved hose line 36 suitably connected with a supply of compressed air, not shown. The lever 22 is fastened to an axle 23 which is supported in a bearing on the standard or frame A.. To the axle 23 is also secured a lever 24, on the free end of which a roller 25 is supported. This roller 25 cooperates with a cam 21, which is a lifting cam, fastened to a shaft 28, supported on the frame A, preferably on a bracket 29 thereof. The cam 21 is driven in the propulsion rhythm of the troughs I for moving the cigars. A traction spring 25 connected with the lever 22 and the platform I9, tends to lay the roller 25 against the lifting cam 21.

The mode of operation is as follows.

By a gripper contrivance which is not illustrated in the drawings, but is in itself well known, a out-to-shape band R is taken from a stack of bands and is passed over the cigar Z in the manner which is apparent from Figure l, whereupon the band-applying devices 2 to I8 proceed to operate in the manner hereinbefore described. First, accordingly, the levers 5 and 6 are shifted downward, so that the belt I I presses the cut-toshape piece R uponl the cigar, As soon as the fingers 1, 8 have come to be approximately in the position apparent from Figure 3` (the nger 1, as a result of slight swinging 0f the cam I5 has passed around the cigar approximately so that the left flap 3I of the band R assumes the position directed obliquely downward which is indicated by broken lines), so that the air issuing from the nozzle 2I places the end 3l around the cigar in the manner apparent from Figure 3. While the end 3I is held in this position, the finger 8 is moved toward the left as a result of suitable swinging of the cam I6, whereat the other flap 32 of the band is placed upon the end of the flap 3I. At the further movement of the finger 8 toward the left the flap 32 is finally pressed on the flap 3I which was applied first, whereat the adhesive, applied either outside on the flap 3I or inside on the fiap 32, comes into action. While the finger 8 is shifted back again into the position apparent from Figure 3, the nozzle head 33, fashioned as a presser, is shifted upward by the lifting cam 21, and approaches the cigar and presses the pasted overlapping ends 3l, 32, of the band R upon one another for a short time. In the meantime, the levers 2 and 3 are moved back again into their initial position in accordance With Figure 1. Shortly before this end position is reached, the nozzle head 33 which is fashioned as a presser is moved back downward again.

Mechanism capable of operating the levers 5 and 6, the cams I5 and I6, and the-shaft 28, consists of the following: A lever 40, pivoted to the elbow lever 5, is pivoted at its other end at 4I to a vertical rod 42 pivoted to another rod 41 at 4B and extending downwardly and beyond a supporting pivot 43 and having at its lowermost end a follower 44 cooperating with a cam 45 secured to the shaft 46. The rod 41 is pivotally connected with the elbow lever 6. The cam I5 has pivotally connected therewith a rod 50 pivoted at 52 to a rod 54 pivotally supported at 43 and extending downwardly, being provided at its free end with a follower 56 cooperating with the cam 58 secured to the shaft 46. The other cam u 6 is pivotally connected with a rod 5l in turn pivotally connected at 53 to a rod 55 which is pivotally supported at 43 and has at its lowermost end a follower i cooperating with a cam 59 secured to the shaft 46. Suitable mechanism not shown is provided to operate cam 46 from the shaft 28. For the purpose of supporting the carrier, supports la are provided and secured below the table or platform I9.

From the foregoing, it Will have been noted that means have been provided to envelop a cigar band by fingers and a belt, and secondly, that an air jet serves to provide a new mode of operation in taking the place of part of the movement of one of said fingers, and thirdly, that the jet conduit serves as a pressure member to cause the overlapping ends of the bands to be joined permanently by the adhesive.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiments of this invention Without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims:

What is claimed is:

l. A cigar banding machine, comprising means for holding a cigar, a pair of fingers for bending a band about the cigar, one of said fingers first partially embracing one portion of the band around the cigar, allowing the adjacent end to project from the cigar, air jet means for completing the enveloping movement of said end of said band, and means moving the other nger to move the other end of the band circumferentially around the cigar.

2. A cigar banding machine, comp-rising a band applying mechanism including fingers for moving the ends of a band around a cigar, an air jet device for assisting in applying said band to said cigar, and means for moving the air jet device against the overlapping ends of the band.

3. A cigar banding machine, comprising a pair of folding fingers, means for bending a band around a cigar by means of the pair of folding fingers, and a compressed air nozzle installed with respect to the folding fingers in such a Way that the stream of compressed air seizes one end of the band and turns it in, before the other end is pressed against the cigar.

4. A cigar banding machine, comprising means for bending a band around a cigar including a pair of folding fingers, a compressed air nozzle installed with respect to the folding fingers in such a Way that the stream of compressed air seizes one end of the band and turns it in, before the other end is pressed against the cigar by a folding nger, means for carrying the nozzle by a control levery and means for controlling the nozzie in such a way that its nozzle head, after the applying of the band has taken place, is moved up against the cigar in order to act as a presser striking upon the overlapping ends of the band.

5. A cigar banding machine, comprising means for bending a band around a cigar including a pair of swing levers, a folding finger on each lever,

a compressed air nozzle installed with respect to the folding fingers in such a Way that the stream of compressed air seizes one end of the band and turns it in, before the other end is pressed against the cigar by a folding ringer, a belt suspended elastica-ily at its ends, and guide rollers for said belt at the free ends of said swinging levers which, in descending, take the cigar between them.

6. A cigar banding machine, having a frame comprising a support for a cigar, means for bending a band about said cigar, said means comprising a pair of levers having one end pivotally supported to move up and down, cam means on said frame for moving the levers towards and away from each other, lingers on the other ends of said levers, rollers on said fingers, a second set of rollers on said ngers, a belt having its free ends yieldingly supported by said levers and passing over said second set of rollers, a compressed air conduit having an air jet, and cam operated means for moving said conduit towards and away from said cigar and the band thereon, whereby the band is wrapped around the cigar by the cooperation of the rollers on the ngers and air jet of the conduit and by the conduit pressing against the overlapping ends of the band around the cigar.

ERNST HERMANN JHNE. RUDOLF ERICH SCHLEEHAHN. 

